Question

how come the processs???​

Answer 1

Answer:

n = 1

Explanation:

K2Cr2O7 + 6e + 14H^+ --> 2Cr^3+ + 7H2O

X^n+ + 3H2O --> XO3^- + (5-n)e + 6H^+

Since; K2Cr2O7 : X^n+ = 6 X 10^-3 mol : 9 X 10^-3 mol

From the equations; K2Cr2O7 : X^n+ = (5 - n) : 6

Therefore,

(5 - n) / 6 = 6 X 10^-3 mol / 9 X 10^-3 mol

5 - n = 4

n = 1

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